124:
145:
542:
on the thin raceme. The capsular heads consist of five fruiting chambers, arranged pentagonally around the midline of the 1.3–1.5 mm (0.051–0.059 in) wide head. Growing from the middle area of each chamber is an apically and inwardly curving persistent
463:
honoring Janet L. Hartford of
Republic, Washington. Sternberg and Hartford have helped to facilitate the collecting of fossils at Republic, and promoted the research and education of fossils done through the Stonerose Interpretive center.
470:
is one of between three and four trochodendraceae species that have been described from the
Klondike Mountain Formation. Broadly circumscribed, three other species have been identified at Republic,
582:
Moss, P. T.; Greenwood, D. R.; Archibald, S. B. (2005). "Regional and local vegetation community dynamics of the Eocene
Okanagan Highlands (British Columbia – Washington State) from palynology".
626:
Manchester, S.; Pigg, K. B.; KvaÄŤek, Z; DeVore, M. L.; Dillhoff, R. M. (2018). "Newly recognized diversity in
Trochodendraceae from the Eocene of western North America".
718:
723:
430:
559:
apically, through separation lines running from just above the styles up to the fruit tip where they met to form a pentagonal star like opening.
738:
728:
362:
in nature. The plant community preserved in the
Klondike Mountain formation is a mixed conifer–broadleaf forest with large pollen elements of
733:
713:
520:. If fossils of the fruits and foliage in attachment are found, that would bring the species count down to three whole plant taxa.
444:
was coined as a reference to the fruits five-fold symmetry, which is distinct from the fourfold symmetry displayed by extant
497:
410:
132:
144:
347:
123:
708:
436:
684:
Wolfe, J.A.; Wehr, W.C. (1987). "Middle Eocene dicotyledonous plants from
Republic, northeastern Washington".
488:
354:. The Klondike Mountain Formation preserves an upland temperate flora which was first interpreted as being
319:
476:
328:
252:
271:
591:
482:
417:
351:
556:
643:
539:
493:
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range between 5.8–9.2 cm (2.3–3.6 in) in length with the fruits arranged long the
301:
215:
205:
544:
297:
182:
667:
Journal of the
Faculty of Science, Hokkaido University. Series 4, Geology and Mineralogy
595:
17:
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425:
402:
169:
702:
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74:
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specimens. At the time of description, type series specimens were preserved in the
367:
355:
413:
359:
49:
343:
is known from specimens which are recovered from outcrops of the early Eocene,
290:
94:
59:
661:
Wolfe, J.A.; Tanai, T. (1987). "Systematics, Phylogeny, and
Distribution of
383:
99:
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are possibly the fruits belonging to the extinct trochodendraceous leaves
552:
460:
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406:
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89:
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43:
104:
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358:, however further study has shown the flora to be more
551:
bulge at its base. Rimming the base of each fruit are
665:(maples) in the Cenozoic of Western North America".
492:is known from related Kamloops group shales at the
621:
619:
617:
615:
613:
8:
405:, number SR 93-08-02, plus a group of eight
577:
575:
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122:
31:
686:United States Geological Survey Bulletin
628:International Journal of Plant Sciences
567:
431:International Journal of Plant Sciences
27:Extinct genus of Trochodendralean plant
555:creating a raised flange. The fruits
538:in a helical pattern. Each capsule is
7:
370:, but also having notable traces of
434:along with the type description of
304:, consisting of the single species
584:Canadian Journal of Earth Sciences
459:honoring Michael E. Sternberg and
25:
394:The species was described from a
336:Distribution and paleoenvironment
719:Ypresian plants of North America
143:
724:Extinct flora of North America
1:
739:Prehistoric angiosperm genera
729:Fossil taxa described in 2018
498:Cache Creek, British Columbia
411:Stonerose Interpretive Center
486:. Additionally the species
734:Klondike Mountain Formation
348:Klondike Mountain Formation
310:. The genus is known from
755:
547:, each with an elliptical
314:fruits found in the early
516:are likely the fruits of
508:is likely the fruits of
448:species. They chose the
258:
251:
140:Scientific classification
138:
131:Holotype infructescence,
130:
121:
34:
714:Plants described in 2018
529:Pentacentron sternhartae
472:Paraconcavistylon wehrii
437:Paraconcavistylon wehrii
341:Pentacentron sternhartae
307:Pentacentron sternhartae
265:Pentacentron sternhartae
18:Pentacentron sternhartae
489:Trochodendron drachukii
477:Tetracentron hopkinsii
428:of the species in the
329:Tetracentron hopkinsii
424:published their 2018
318:deposits of northern
483:Trochodendron nastae
418:Republic, Washington
596:2005CaJES..42..187M
244:P. sternhartae
494:McAbee Fossil Beds
440:. The genus name
322:, United States.
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16:(Redirected from
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504:2018 noted that
450:specific epithet
426:type description
320:Washington state
302:Trochodendraceae
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216:Trochodendraceae
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40:Temporal range:
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709:Trochodendrales
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604:10.1139/E04-095
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532:fruiting spikes
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514:Pe. sternhartae
468:Pe. sternhartae
416:collections in
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298:flowering plant
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206:Trochodendrales
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634:(8): 663–676.
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590:(2): 187–204.
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553:Perianth scars
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500:. Manchester
455:as a combined
420:. Manchester
414:paleobotanical
403:Infructescence
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324:P. sternhartae
300:in the family
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518:Te. hopkinsii
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506:Tr. drachukii
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253:Binomial name
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170:Tracheophytes
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446:Tetracentron
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442:Pentacentron
441:
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393:
368:golden larch
356:microthermal
340:
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286:Pentacentron
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259:
243:
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230:Pentacentron
229:
228:
189:
176:
163:
36:Pentacentron
35:
29:
673:(1): 1–246.
524:Description
453:sternhartae
360:mesothermal
183:Angiosperms
133:SR 93-08-02
703:Categories
563:References
510:Tr. nastae
272:Manchester
237:Species:
153:Kingdom:
648:92201595
512:, while
461:matronym
457:patronym
407:paratype
400:holotype
390:Taxonomy
352:Republic
345:Ypresian
212:Family:
196:Eudicots
44:Ypresian
692:: 1–25.
592:Bibcode
549:nectary
540:sessile
380:cypress
291:extinct
262:†
241:†
222:Genus:
202:Order:
157:Plantae
111:↓
646:
557:opened
480:, and
398:, the
382:, and
376:spruce
316:Eocene
312:fossil
289:is an
277:, 2018
644:S2CID
545:style
502:et al
496:near
422:et al
364:birch
294:genus
275:et al
190:Clade
177:Clade
164:Clade
690:1597
663:Acer
536:axis
384:palm
366:and
50:Preęž’
636:doi
632:179
600:doi
372:fir
350:in
296:of
705::
688:.
671:22
669:.
642:.
630:.
612:^
598:.
588:42
586:.
570:^
474:,
386:.
378:,
374:,
332:.
192::
179::
166::
100:Pg
650:.
638::
606:.
602::
594::
226:â€
105:N
95:K
90:J
85:T
80:P
75:C
70:D
65:S
60:O
55:ęž’
20:)
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